Revert "Update examples collection"

This reverts commit 87d3066428.

emsdk-cache/emsdk-main/emsdk_env.fish

@@ -1,14 +0,0 @@
-#In your Fish configuration, add this line:
-#alias emsdk_setup ". /path/to/emsdk/emsdk_env.fish"
-#Now, when you want to use the SDK, run this alias first to set up
-#your environment.
-
-set -gx EMSDK_FISH 1
-
-set -l script (status -f)
-set -l dir (dirname $script)
-
-eval ($dir/emsdk construct_env)
-
-set -e -l script
-set -e -l dir